But you have had jet, another version of Maya installed on your computer ?
Because i have had the same problem when I shift from maya 6.5 to 7.5: i had mistake to choose the aw.dat file of the older version, so the message error was the same that i see in the pdf. that you send me: "Imput license contains 1 licence(s) matching this computer".
Verify the maya version corresponding license aw.dat file information opening it with text edit application.
I attach you an pdf. with the look of an installation file of Maya 8.5 unlimited installed on one of my Mac.
.......but you sad me that you have a student version of maya 2009; now i have a doubt that maybe the install file can be different.
Check the file contained of your aw.dat file
15009_lnNfdDYu0dlGQH5rRYsh.pdf